The revolutionary SureFire WARCOMP-556-1/2-28 flash hider, which fits M4/M16 weapons and variants with -28 muzzle threads, is the worlds most shoot able flash hider. Its patent-pending design provides three valuable functions: 99% reduction in muzzle flash, eliminates muzzle rise, and serves as a rock-solid mounting adapter for all SureFire SOCOM Series 5.56mm Fast-Attach suppressors.